| /* |
| * Copyright 2016 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #include "gm.h" |
| #include "Resources.h" |
| #include "SkCodec.h" |
| #include "SkColorSpace.h" |
| #include "SkColorSpacePriv.h" |
| #include "SkHalf.h" |
| #include "SkImage.h" |
| #include "SkImageInfoPriv.h" |
| #include "SkPictureRecorder.h" |
| |
| static const int kWidth = 64; |
| static const int kHeight = 64; |
| |
| static sk_sp<SkImage> make_raster_image(SkColorType colorType) { |
| std::unique_ptr<SkStream> stream(GetResourceAsStream("images/google_chrome.ico")); |
| std::unique_ptr<SkCodec> codec = SkCodec::MakeFromStream(std::move(stream)); |
| if (!codec) { |
| return nullptr; |
| } |
| |
| SkBitmap bitmap; |
| SkImageInfo info = codec->getInfo().makeWH(kWidth, kHeight) |
| .makeColorType(colorType) |
| .makeAlphaType(kPremul_SkAlphaType); |
| bitmap.allocPixels(info); |
| codec->getPixels(info, bitmap.getPixels(), bitmap.rowBytes()); |
| bitmap.setImmutable(); |
| return SkImage::MakeFromBitmap(bitmap); |
| } |
| |
| static sk_sp<SkImage> make_codec_image() { |
| sk_sp<SkData> encoded = GetResourceAsData("images/randPixels.png"); |
| return SkImage::MakeFromEncoded(encoded); |
| } |
| |
| static void draw_contents(SkCanvas* canvas) { |
| SkPaint paint; |
| paint.setStyle(SkPaint::kStroke_Style); |
| paint.setStrokeWidth(20); |
| paint.setColor(0xFF800000); |
| canvas->drawCircle(40, 40, 35, paint); |
| paint.setColor(0xFF008000); |
| canvas->drawCircle(50, 50, 35, paint); |
| paint.setColor(0xFF000080); |
| canvas->drawCircle(60, 60, 35, paint); |
| } |
| |
| static sk_sp<SkImage> make_picture_image() { |
| SkPictureRecorder recorder; |
| draw_contents(recorder.beginRecording(SkRect::MakeIWH(kWidth, kHeight))); |
| return SkImage::MakeFromPicture(recorder.finishRecordingAsPicture(), |
| SkISize::Make(kWidth, kHeight), nullptr, nullptr, |
| SkImage::BitDepth::kU8, |
| SkColorSpace::MakeSRGB()); |
| } |
| |
| static sk_sp<SkColorSpace> make_parametric_transfer_fn(const SkColorSpacePrimaries& primaries) { |
| skcms_Matrix3x3 toXYZD50; |
| SkAssertResult(primaries.toXYZD50(&toXYZD50)); |
| skcms_TransferFunction fn = { 1.8f, 1.f, 0.f, 0.f, 0.f, 0.f, 0.f }; |
| return SkColorSpace::MakeRGB(fn, toXYZD50); |
| } |
| |
| static sk_sp<SkColorSpace> make_wide_gamut() { |
| // ProPhoto |
| SkColorSpacePrimaries primaries; |
| primaries.fRX = 0.7347f; |
| primaries.fRY = 0.2653f; |
| primaries.fGX = 0.1596f; |
| primaries.fGY = 0.8404f; |
| primaries.fBX = 0.0366f; |
| primaries.fBY = 0.0001f; |
| primaries.fWX = 0.34567f; |
| primaries.fWY = 0.35850f; |
| return make_parametric_transfer_fn(primaries); |
| } |
| |
| static sk_sp<SkColorSpace> make_small_gamut() { |
| SkColorSpacePrimaries primaries; |
| primaries.fRX = 0.50f; |
| primaries.fRY = 0.33f; |
| primaries.fGX = 0.30f; |
| primaries.fGY = 0.50f; |
| primaries.fBX = 0.25f; |
| primaries.fBY = 0.16f; |
| primaries.fWX = 0.3127f; |
| primaries.fWY = 0.3290f; |
| return make_parametric_transfer_fn(primaries); |
| } |
| |
| static void draw_image(SkCanvas* canvas, SkImage* image, SkColorType dstColorType, |
| SkAlphaType dstAlphaType, sk_sp<SkColorSpace> dstColorSpace, |
| SkImage::CachingHint hint) { |
| size_t rowBytes = image->width() * SkColorTypeBytesPerPixel(dstColorType); |
| sk_sp<SkData> data = SkData::MakeUninitialized(rowBytes * image->height()); |
| SkImageInfo dstInfo = SkImageInfo::Make(image->width(), image->height(), dstColorType, |
| dstAlphaType, dstColorSpace); |
| if (!image->readPixels(dstInfo, data->writable_data(), rowBytes, 0, 0, hint)) { |
| memset(data->writable_data(), 0, rowBytes * image->height()); |
| } |
| |
| // Now that we have called readPixels(), dump the raw pixels into an srgb image. |
| sk_sp<SkColorSpace> srgb = SkColorSpace::MakeSRGB(); |
| sk_sp<SkImage> raw = SkImage::MakeRasterData(dstInfo.makeColorSpace(srgb), data, rowBytes); |
| canvas->drawImage(raw.get(), 0.0f, 0.0f, nullptr); |
| } |
| |
| class ReadPixelsGM : public skiagm::GM { |
| public: |
| ReadPixelsGM() {} |
| |
| protected: |
| SkString onShortName() override { |
| return SkString("readpixels"); |
| } |
| |
| SkISize onISize() override { |
| return SkISize::Make(6 * kWidth, 9 * kHeight); |
| } |
| |
| void onDraw(SkCanvas* canvas) override { |
| const SkAlphaType alphaTypes[] = { |
| kUnpremul_SkAlphaType, |
| kPremul_SkAlphaType, |
| }; |
| const SkColorType colorTypes[] = { |
| kRGBA_8888_SkColorType, |
| kBGRA_8888_SkColorType, |
| kRGBA_F16_SkColorType, |
| }; |
| const sk_sp<SkColorSpace> colorSpaces[] = { |
| make_wide_gamut(), |
| SkColorSpace::MakeSRGB(), |
| make_small_gamut(), |
| }; |
| |
| for (sk_sp<SkColorSpace> dstColorSpace : colorSpaces) { |
| for (SkColorType srcColorType : colorTypes) { |
| canvas->save(); |
| sk_sp<SkImage> image = make_raster_image(srcColorType); |
| if (!image) { |
| continue; |
| } |
| if (GrContext* context = canvas->getGrContext()) { |
| image = image->makeTextureImage(context, canvas->imageInfo().colorSpace()); |
| } |
| if (image) { |
| for (SkColorType dstColorType : colorTypes) { |
| for (SkAlphaType dstAlphaType : alphaTypes) { |
| draw_image(canvas, image.get(), dstColorType, dstAlphaType, |
| dstColorSpace, SkImage::kAllow_CachingHint); |
| canvas->translate((float)kWidth, 0.0f); |
| } |
| } |
| } |
| canvas->restore(); |
| canvas->translate(0.0f, (float) kHeight); |
| } |
| } |
| } |
| |
| private: |
| typedef skiagm::GM INHERITED; |
| }; |
| DEF_GM( return new ReadPixelsGM; ) |
| |
| class ReadPixelsCodecGM : public skiagm::GM { |
| public: |
| ReadPixelsCodecGM() {} |
| |
| protected: |
| SkString onShortName() override { |
| return SkString("readpixelscodec"); |
| } |
| |
| SkISize onISize() override { |
| return SkISize::Make(3 * (kEncodedWidth + 1), 12 * (kEncodedHeight + 1)); |
| } |
| |
| DrawResult onDraw(SkCanvas* canvas, SkString* errorMsg) override { |
| if (!canvas->imageInfo().colorSpace()) { |
| *errorMsg = "This gm is only interesting in color correct modes."; |
| return DrawResult::kSkip; |
| } |
| |
| const SkAlphaType alphaTypes[] = { |
| kUnpremul_SkAlphaType, |
| kPremul_SkAlphaType, |
| }; |
| const SkColorType colorTypes[] = { |
| kRGBA_8888_SkColorType, |
| kBGRA_8888_SkColorType, |
| kRGBA_F16_SkColorType, |
| }; |
| const sk_sp<SkColorSpace> colorSpaces[] = { |
| make_wide_gamut(), |
| SkColorSpace::MakeSRGB(), |
| make_small_gamut(), |
| }; |
| const SkImage::CachingHint hints[] = { |
| SkImage::kAllow_CachingHint, |
| SkImage::kDisallow_CachingHint, |
| }; |
| |
| sk_sp<SkImage> image = make_codec_image(); |
| for (sk_sp<SkColorSpace> dstColorSpace : colorSpaces) { |
| canvas->save(); |
| for (SkColorType dstColorType : colorTypes) { |
| for (SkAlphaType dstAlphaType : alphaTypes) { |
| for (SkImage::CachingHint hint : hints) { |
| draw_image(canvas, image.get(), dstColorType, dstAlphaType, dstColorSpace, |
| hint); |
| canvas->translate(0.0f, (float) kEncodedHeight + 1); |
| } |
| } |
| } |
| canvas->restore(); |
| canvas->translate((float) kEncodedWidth + 1, 0.0f); |
| } |
| return DrawResult::kOk; |
| } |
| |
| private: |
| static const int kEncodedWidth = 8; |
| static const int kEncodedHeight = 8; |
| |
| typedef skiagm::GM INHERITED; |
| }; |
| DEF_GM( return new ReadPixelsCodecGM; ) |
| |
| class ReadPixelsPictureGM : public skiagm::GM { |
| public: |
| ReadPixelsPictureGM() {} |
| |
| protected: |
| SkString onShortName() override { |
| return SkString("readpixelspicture"); |
| } |
| |
| SkISize onISize() override { |
| return SkISize::Make(3 * kWidth, 12 * kHeight); |
| } |
| |
| DrawResult onDraw(SkCanvas* canvas, SkString* errorMsg) override { |
| if (!canvas->imageInfo().colorSpace()) { |
| *errorMsg = "This gm is only interesting in color correct modes."; |
| return DrawResult::kSkip; |
| } |
| |
| const sk_sp<SkImage> images[] = { |
| make_picture_image(), |
| }; |
| const SkAlphaType alphaTypes[] = { |
| kUnpremul_SkAlphaType, |
| kPremul_SkAlphaType, |
| }; |
| const SkColorType colorTypes[] = { |
| kRGBA_8888_SkColorType, |
| kBGRA_8888_SkColorType, |
| kRGBA_F16_SkColorType, |
| }; |
| const sk_sp<SkColorSpace> colorSpaces[] = { |
| make_wide_gamut(), |
| SkColorSpace::MakeSRGB(), |
| make_small_gamut(), |
| }; |
| const SkImage::CachingHint hints[] = { |
| SkImage::kAllow_CachingHint, |
| SkImage::kDisallow_CachingHint, |
| }; |
| |
| for (sk_sp<SkImage> image : images) { |
| for (sk_sp<SkColorSpace> dstColorSpace : colorSpaces) { |
| canvas->save(); |
| for (SkColorType dstColorType : colorTypes) { |
| for (SkAlphaType dstAlphaType : alphaTypes) { |
| for (SkImage::CachingHint hint : hints) { |
| draw_image(canvas, image.get(), dstColorType, dstAlphaType, |
| dstColorSpace, hint); |
| canvas->translate(0.0f, (float) kHeight); |
| } |
| } |
| } |
| canvas->restore(); |
| canvas->translate((float) kWidth, 0.0f); |
| } |
| } |
| return DrawResult::kOk; |
| } |
| |
| private: |
| |
| typedef skiagm::GM INHERITED; |
| }; |
| DEF_GM( return new ReadPixelsPictureGM; ) |